108 EXPERIMENTAL FARMS. 



RESULTS 



Lyaol on peach trees. (1 ) |^ per cent. Effect on foliage : Twig blight (Monilia) was not 

 arrested ; leaf curl was abundant. Effect on fruit : No perceptible benefit. (2) 1 per cent ; 

 foliage, considerably " curled " and blighted. Fruit, an average amount of rot. (3) l^per 

 cent; foliage, less affected by curl than No. 1 and 2. Twig blight in evidence. Fruit 

 fairly sound. (4) Copper sulphate and Bordeaux mixture. The trees in this row 

 developed yellows and were destroyed before harvesting time. (5) Bordeaux mixture 

 3 : 3 lbs., 40 galls., and Paris green, 3 oz. Foliage, five trees out of the six in this 

 row were practically free of curl leaf. Twig blight caused by Monilia appeared here 

 and there, no injury to the foliage was noted as an effect of the spray. Fruit almost free 

 from rot. (6) Bordeaux mixture, 4 lbs. copper sulphate. 8 lbs. lime, 4 oz. Paris green. 

 Four applications beginning May 22. This formula was compared with No. 5. At the 

 time of the first application " curl leaf " had already developed and was not obviously 

 checked by the spray. (7) Check row : badly affected by curl leaf ; considerable blight. 



Lysol was also used on p?wm trees, but without any apparent benefit. IJ per cent ; 

 solution injured the leaves slightly. On quinces it did not prevent the development of 

 orange rust. Having tried this substance for three years with unsatisfactory resulti, 

 there does not seem to be any good reason for retaining it longer among the list of insecti- 

 cides and fungicides used as sprays. 



Mr. Burrell makes the following observations : — 



" In regard to the experimental work of spraying peach and plum trees to prevent 

 curl leaf and rot, although you have the details, I might say that the season throughout 

 was unfavourable for the successful application of the mixtures, frequent showers and 

 rapid changes of temperature creating unusual and somewhat difficult conditions. 

 Unfortunately, too, the disease of " yellows " appeared on several of the trees in one of 

 the treated rows ; these trees were of course promptly cut out and burned. While the 

 spraying was not so effective as might have been desired against the peach curl and 

 monilia, some good was accomplished ; the fruit on the trees sprayed with the Bordeaux 

 mixture being from 15 to 25 per cent freer from rot than on the unsprayed trees. The 

 Lysol was not noticeably effective either as an insecticide or as a fungicide. The 1^ 

 per cent solution (6 oz. to 10 galls.) was slightly injurious to the foliage. At this 

 strength some of the smaller green aphides were killed, but the half grown and mature 

 lice were unhurt. 



" The applications to the quince trees for the prevention of orange rust were not pro- 

 ductive of any very inarked results, as very little orange rust appeared this year on any 

 quince trees. 



" I may say, however, in gathering the quinces I observed that the foliage of the two 

 rows sprayed (4 times^ with Bordeaux mixture was much more glossy and healthy than 

 that on the rest of the trees, and that the quinces were uniformly good. The row sprayed 

 with ' lysol ' was much the same as the two unsprayed rows, and in each case the foliage 

 was less healthy than on the rows treated with Bordeaux mixture, and some slight 

 indications of rust were noticed." 



DKDUCnOKS. 



Lysol. — Gave no marked results either as a fungicide or insecticide. 



Bordeaux mixture 3 : 3 gave the best results in preventing peach curl, fruit rot and 

 twig blight. This standard remedy seems most effective and is therefore recommended. 

 Care should be exercised in preparing the mixture in order that injury to peach and 

 plum foliage may not result. It is wise to use fresh lime only, and expedient to employ 

 the ferrocyanide of potassium test before applying Bordeaux mixture to peach trees. 



